Detective Carlton Jebediah Lassiter MCJ is a fictitious character in the American sitcom Psych, played by Timothy Omundson. Fictional biography One of the main supporting characters of the detective comedy-drama show Psych, Lassiter is a ten-year veteran of the Santa Barbara Police Department, and the youngest Head Detective ever named to the force. He also has a Master's Degree in Criminology. He has a tense relationship with Shawn Spencer that often leads to exceedingly funny situations. According to Lassiter's blog, which is written by actor Timothy Omundson, he was a close friend of the former Santa Barbara police chief, who led him to enroll in the police academy during a "dangerous point" in Lassiter's youth. Upon his first appearance in the series pilot, Lassiter is said to be five months into a trial separation from his wife, Victoria, although he later, when drunk, confesses that they have in fact been separated for two years. Part of their marriage troubles appears to stem from a disagreement over the matter of children. Lassiter says his wife believes that he does not want children, although this is not the case. Omundson says that, despite Lassiter's long estrangement from his wife, it would likely be very hard for him to admit that the marriage is over because "that means admitting failure, and Lassiter will never admit to failure." During the pilot, Lassiter is involved in a secret romance with his partner, Detective Lucinda Barry (Anne Dudek); however, soon after Shawn Spencer publicly exposes the nature of their relationship, Barry is transferred and the affair appears to have ended. She is replaced by Junior Detective Juliet O'Hara. Eventually, Lassiter's wife asks him to dinner, something he thinks points to reconciliation for them, but in truth, she simply wants to give him divorce papers. Saddened but resigned, he signs them, telling her he's going to let go of the past and think of the future without her. She tells him she will never stop loving him, even though they are divorced. It was first mentioned in Lassiter's blog that he has a sister; in the season 5 episode "Dead Bear Walking", she is revealed to be a younger sister named Lauren, played by April Bowlby. Lauren visits Lassiter to film a documentary about police work. After meeting Shawn and Gus, she is impressed by their methods and decides to film them instead, which irritates Lassiter. After